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405EZ Datasheet, PDF (15/54 Pages) Applied Micro Circuits Corporation – PowerPC 405EZ Embedded Processor | |||
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PPC405EZ â PowerPC 405EZ Embedded Processor
Revision 1.27 - August 22, 2007
Preliminary Data Sheet
Analog-to-Digital Converter (ADC)
The ADC is a mixed-signal core. It uses the successive approximation (binary search) conversion technique to
achieve minimal conversion time. The analog input range is 0.0V to Vref.
Features include:
⢠Internal 10-bit resolution SAR ADC
⢠Sample and hold
⢠Support for multiple conversion times such as
â 3.25 μs with 4-MHz input clock
â 52 μs with 250-kHz input clock
⢠Comparator
⢠Digital controller
⢠8-channel analog input (3.3 V) with 8:1 analog multiplexer
⢠10-bit parallel digital outputs
⢠Input trigger from Chameleon Timer supported
⢠OPB interface with optional DMA support
Digital-to-Analog Converter (DAC)
The DAC is a 1-channel converter, optimized for low power applications. It provides unbuffered single-ended
analog current output. The single analog current output can be tied directly to an output resistor to provide twos-
complementary, single-ended voltage outputs.
Features include:
⢠10-bit resolution at 30M samples/sec
⢠Segmented DAC
⢠Single-ended current outputs (6mA maximum swing at 3.3V)
⢠Monotonicity ensured
⢠Straight binary input
⢠Internal bandgap voltage reference
⢠Power management by means of Sleep Mode
⢠Integrated functional test logic
⢠Input trigger from Chameleon Timer supported
⢠OPB interface with optional DMA support
JTAG
Features include:
⢠IEEE 1149.1 test access port
⢠JTAG Boundary Scan Description Language (BSDL)
Refer to http://www.amcc.com/Embedded/Partners for a list of AMCC partners supplying probes for use with the
JTAG interface.
AMCC Proprietary
15
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